#include<iostream>
#include<cstring>
using namespace std;
//char s[1000];
int main()
{
	string s;
	getline(cin,s);
	for (int i=0;i<s.size();i++)
	{
		if (s[i]=='z') s[i] = 'a';
		else if (s[i]=='Z')	s[i] = 'A';
		else if (s[i]>='a' && s[i]<'z') s[i]= s[i]+1;
		else if (s[i]>='A' && s[i]<'Z') s[i]= s[i]+1;
	}
	
	cout << s;
	return 0;
}



